lib/Fuzzer/CMakeLists.txt

   1 include(CheckCXXSourceCompiles)
   2
   3 if( APPLE )
   4   CHECK_CXX_SOURCE_COMPILES("
   5       static thread_local int blah;
   6       int main() {
   7         return 0;
   8       }
   9       " HAS_THREAD_LOCAL)
  10
  11   if( NOT HAS_THREAD_LOCAL )
  12     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Dthread_local=__thread")
  13   endif()
  14 endif()
  15
  16 set(LIBFUZZER_FLAGS_BASE "${CMAKE_CXX_FLAGS}")
  17 if( LLVM_USE_SANITIZE_COVERAGE )
  18   if(NOT "${LLVM_USE_SANITIZER}" STREQUAL "Address")
  19     message(FATAL_ERROR
  20       "LibFuzzer and its tests require LLVM_USE_SANITIZER=Address and "
  21       "LLVM_USE_SANITIZE_COVERAGE=YES to be set."
  22       )
  23   endif()
  24
  25   # Disable the coverage and sanitizer instrumentation for the fuzzer itself.
  26   set(CMAKE_CXX_FLAGS "${LIBFUZZER_FLAGS_BASE} -fno-sanitize-coverage=trace-pc-guard,edge,trace-cmp,indirect-calls,8bit-counters -Werror")
  27 endif()
  28
  29 # Compile libFuzzer if the compilation is specifically requested, OR
  30 # if the platform is known to be working.
  31 if ( LLVM_USE_SANITIZE_COVERAGE OR CMAKE_SYSTEM_NAME MATCHES "Darwin|Linux" )
  32   add_library(LLVMFuzzerNoMainObjects OBJECT
  33       FuzzerCrossOver.cpp
  34       FuzzerDriver.cpp
  35       FuzzerExtFunctionsDlsym.cpp
  36       FuzzerExtFunctionsDlsymWin.cpp
  37       FuzzerExtFunctionsWeak.cpp
  38       FuzzerExtraCounters.cpp
  39       FuzzerIO.cpp
  40       FuzzerIOPosix.cpp
  41       FuzzerIOWindows.cpp
  42       FuzzerLoop.cpp
  43       FuzzerMerge.cpp
  44       FuzzerMutate.cpp
  45       FuzzerSHA1.cpp
  46       FuzzerShmemPosix.cpp
  47       FuzzerShmemWindows.cpp
  48       FuzzerTracePC.cpp
  49       FuzzerUtil.cpp
  50       FuzzerUtilDarwin.cpp
  51       FuzzerUtilLinux.cpp
  52       FuzzerUtilPosix.cpp
  53       FuzzerUtilWindows.cpp
  54       )
  55   add_library(LLVMFuzzerNoMain STATIC
  56       $<TARGET_OBJECTS:LLVMFuzzerNoMainObjects>
  57       )
  58   target_link_libraries(LLVMFuzzerNoMain ${LLVM_PTHREAD_LIB})
  59   add_library(LLVMFuzzer STATIC
  60       FuzzerMain.cpp
  61       $<TARGET_OBJECTS:LLVMFuzzerNoMainObjects>
  62       )
  63   target_link_libraries(LLVMFuzzer ${LLVM_PTHREAD_LIB})
  64 endif()
  65
  66 if( LLVM_USE_SANITIZE_COVERAGE AND LLVM_INCLUDE_TESTS )
  67   add_subdirectory(test)
  68 endif()